[LARTC] Applying the same class to multiple interfaces

[Leigh Sharpe]

Hi All,

I'm trying to do some traffic shaping on an ethernet bridge. Currently, I have the following setup working:

 

ifconfig eth0 down
brctl addbr br0
brctl addif br0 eth0
brctl addif br0 eth1
brctl stp br0 off
ifconfig eth0 0.0.0.0 up
ifconfig eth1 0.0.0.0 up
ifconfig br0 up

This creates a bridge consisting of eth0 and eth1. So far so good.

 

I now want to use tc to shape traffic through this bridge. By applying the following, I am able to limit the given MAC address to 128K in each direction:

 

tc qdisc add dev eth0 root handle 1:0 cbq bandwidth 100Mbit avpkt 1000 mpu 64
tc qdisc add dev eth1 root handle 1:0 cbq bandwidth 100Mbit avpkt 1000 mpu 64
tc class add dev eth0 parent 1:0 classid 1:1 cbq rate 128Kbit allot 1514 prio 1 avpkt 1000 bounded
tc class add dev eth1 parent 1:0 classid 1:1 cbq rate 128Kbit allot 1514 prio 1 avpkt 1000 bounded
tc filter add dev eth0 parent 1:0 protocol ip handle 1 fw flowid 1:1
tc filter add dev eth1 parent 1:0 protocol ip handle 1 fw flowid 1:1

ebtables -A FORWARD -s 00:10:A4:EC:65:E8 -j mark --set-mark 1 --mark-target ACCEPT
ebtables -A FORWARD -d 00:10:A4:EC:65:E8 -j mark --set-mark 1 --mark-target ACCEPT

This works OK, but it isn't quite what I want. I want to limit the traffic to 128K total. ie, 128K in one direction or the other, or 64K in each direction simultaneously, or 100K in one direction and 28K in the other, etc...

 I can't see anything in the tc docs which indicates that I can apply the same class and filter to multiple interfaces at once.

I'd be happy enough with applying the same rate limit to a single interface, but measuring both ingress and egress traffic to come up with the lmit.

 

Ultimately, of course, I'll be using different criteria to mark the packets.

 

 

Regards,
             Leigh

 

Leigh Sharpe
Network Systems Engineer
Pacific Wireless
Ph +61 3 9584 8966
Mob 0408 009 502
email [EMAIL PROTECTED]
web www.pacificwireless.com.au

 

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